JACKSON-MAU v. WALGREEN CO.

No. 23-642 August Term, 2023.

115 F.4th 121 (2024)

Theda JACKSON-MAU, on behalf of herself and others similarly situated, Plaintiff-Appellant, v. WALGREEN CO. and International Vitamin Corporation, Defendants-Appellees.

United States Court of Appeals, Second Circuit.

Decided: August 16, 2024.


Attorney(s) appearing for the Case

Philip M. Black (Carl L. Stine, Matthew Insley-Pruitt, on the brief), Wolf Popper LLP, New York, NY, for Plaintiff-Appellant Theda Jackson-Mau.

Jean-Claude André, Bryan Cave Leighton Paisner LLP, Santa Monica, CA (Annie J. Avery, Mark K. Kanow, Elliot Averett, Bryan Cave Leighton Paisner LLP, Santa Monica, CA; A. Elizabeth Blackwell, Darci F. Madden, Stefani L. Wittenauer, Bryan Cave Leighton Paisner LLP, St. Louis, MO; Courtney J. Peterson, Bryan Cave Leighton Paisner LLP, New York, NY, on the brief), for Defendants-Appellees Walgreen Co. and International Vitamin Corporation.

Before: Jacobs, Sack and Sullivan, Circuit Judges.


Glucosamine is a natural chemical compound that is widely used as a dietary supplement to alleviate pain caused by osteoarthritis. Plaintiff-Appellant Theda Jackson-Mau is a former consumer of a glucosamine supplement manufactured by International Vitamin Corporation ("IVC") and sold by Walgreen Co. ("Walgreens") (collectively...

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